cmake_minimum_required(VERSION 3.10)

option(COVERAGE "COVERAGE" OFF)

# Download and unpack googletest at configure time
configure_file(CMakeLists.txt.in googletest-download/CMakeLists.txt)
execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
  RESULT_VARIABLE result
  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download )
if(result)
  message(FATAL_ERROR "CMake step for googletest failed: ${result}")
endif()
execute_process(COMMAND ${CMAKE_COMMAND} --build .
  RESULT_VARIABLE result
  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download )
if(result)
  message(FATAL_ERROR "Build step for googletest failed: ${result}")
endif()

# Prevent overriding the parent project's compiler/linker
# settings on Windows
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)

# Add googletest directly to our build. This defines
# the gtest and gtest_main targets.
add_subdirectory(${CMAKE_CURRENT_BINARY_DIR}/googletest-src
                 ${CMAKE_CURRENT_BINARY_DIR}/googletest-build
                 EXCLUDE_FROM_ALL)

# The gtest/gtest_main targets carry header search path
# dependencies automatically when using CMake 2.8.11 or
# later. Otherwise we have to add them here ourselves.
if (CMAKE_VERSION VERSION_LESS 2.8.11)
  include_directories("${gtest_SOURCE_DIR}/include")
endif()

# set c++ edition
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED True)

# set path
set(TEST unittest/)
set(SRC src/)
# enable ctest
enable_testing()

# link against gtest or gtest_main
add_executable(MCTS_UnitTest ${TEST}/MCTS_UnitTest.cpp)
target_link_libraries(MCTS_UnitTest gtest_main)
add_test(NAME MCTS_Test COMMAND MCTS_UnitTest)

project(mcts)
if (COVERAGE)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17 -fopenmp -O3 -g -Wall -fsanitize=leak --coverage"   )
else()
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17 -fopenmp -O3 -g -Wall"   )
endif()
add_executable(mcts ${SRC}/main.cpp)